This circuit was obtained in an American documentation from the 90's. The circuit can be implemented with some equivalent components, such as transistors and TTL logic circuits.
This circuit was obtained in Linear Technology documentation from 1993. The circuit provides 3.3 V and...
This circuit is from the National Semiconductor CMOS manual of 1977. What this circuit does is to...
This circuit operates from 25 to 65 kHz depending on the transducer used and the settings. We...